Can I get vertex's coordinates result of cloth simulation?
You can use the dependendy graph to do that (supposing the simulation is already baked):
import bpy
import bmesh


# Set the frame considered as the result of the sim
bpy.context.scene.frame_current = 30

# Get the dependency graph state for this frame
dg = bpy.context.evaluated_depsgraph_get()

# The object
obj = bpy.context.object

# The mesh from the object and dependency graph
bm = bmesh.new()
bm.from_object(obj, dg)

# Take the coordinates
for v in bm.verts:
    print(v.co)

del bm